Two grouping methods
Users can now select between two grouping methods: pre- and post-ancestral reconstruction. Post-ancestral reconstruction was the default method in v1.0.0. Pre-ar was the default method in v1.1.0.
Update some object names and plot labels to reflect changes to nomenclature after hogwash paper revisions:
- convergence$intersection --> convergence$N
- Beta_genotype intersect Beta_phenotype --> Ntest